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stm32l4xx_hal_smartcard_ex.c
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00001 /** 00002 ****************************************************************************** 00003 * @file stm32l4xx_hal_smartcard_ex.c 00004 * @author MCD Application Team 00005 * @version V1.5.1 00006 * @date 31-May-2016 00007 * @brief SMARTCARD HAL module driver. 00008 * This file provides extended firmware functions to manage the following 00009 * functionalities of the SmartCard. 00010 * + Initialization and de-initialization functions 00011 * + Peripheral Control functions 00012 * 00013 * 00014 @verbatim 00015 ============================================================================= 00016 ##### SMARTCARD peripheral extended features ##### 00017 ============================================================================= 00018 [..] 00019 The Extended SMARTCARD HAL driver can be used as follows: 00020 00021 (#) After having configured the SMARTCARD basic features with HAL_SMARTCARD_Init(), 00022 then program SMARTCARD advanced features if required (TX/RX pins swap, TimeOut, 00023 auto-retry counter,...) in the hsmartcard AdvancedInit structure. 00024 00025 00026 00027 @endverbatim 00028 ****************************************************************************** 00029 * @attention 00030 * 00031 * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> 00032 * 00033 * Redistribution and use in source and binary forms, with or without modification, 00034 * are permitted provided that the following conditions are met: 00035 * 1. Redistributions of source code must retain the above copyright notice, 00036 * this list of conditions and the following disclaimer. 00037 * 2. Redistributions in binary form must reproduce the above copyright notice, 00038 * this list of conditions and the following disclaimer in the documentation 00039 * and/or other materials provided with the distribution. 00040 * 3. Neither the name of STMicroelectronics nor the names of its contributors 00041 * may be used to endorse or promote products derived from this software 00042 * without specific prior written permission. 00043 * 00044 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00045 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00046 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00047 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 00048 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00049 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 00050 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00051 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00052 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00053 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00054 * 00055 ****************************************************************************** 00056 */ 00057 00058 /* Includes ------------------------------------------------------------------*/ 00059 #include "stm32l4xx_hal.h" 00060 00061 /** @addtogroup STM32L4xx_HAL_Driver 00062 * @{ 00063 */ 00064 00065 /** @defgroup SMARTCARDEx SMARTCARDEx 00066 * @brief SMARTCARD Extended HAL module driver 00067 * @{ 00068 */ 00069 #ifdef HAL_SMARTCARD_MODULE_ENABLED 00070 00071 /* Private typedef -----------------------------------------------------------*/ 00072 /* Private define ------------------------------------------------------------*/ 00073 /* Private macros ------------------------------------------------------------*/ 00074 /* Private variables ---------------------------------------------------------*/ 00075 /* Private function prototypes -----------------------------------------------*/ 00076 00077 /* Exported functions --------------------------------------------------------*/ 00078 /** @defgroup SMARTCARDEx_Exported_Functions SMARTCARD Extended Exported Functions 00079 * @{ 00080 */ 00081 00082 /** @defgroup SMARTCARDEx_Exported_Functions_Group1 Extended Peripheral Control functions 00083 * @brief Extended control functions 00084 * 00085 @verbatim 00086 =============================================================================== 00087 ##### Peripheral Control functions ##### 00088 =============================================================================== 00089 [..] 00090 This subsection provides a set of functions allowing to initialize the SMARTCARD. 00091 (+) HAL_SMARTCARDEx_BlockLength_Config() API allows to configure the Block Length on the fly 00092 (+) HAL_SMARTCARDEx_TimeOut_Config() API allows to configure the receiver timeout value on the fly 00093 (+) HAL_SMARTCARDEx_EnableReceiverTimeOut() API enables the receiver timeout feature 00094 (+) HAL_SMARTCARDEx_DisableReceiverTimeOut() API disables the receiver timeout feature 00095 00096 @endverbatim 00097 * @{ 00098 */ 00099 00100 /** 00101 * @brief Update on the fly the SMARTCARD block length in RTOR register. 00102 * @param hsmartcard: Pointer to a SMARTCARD_HandleTypeDef structure that contains 00103 * the configuration information for the specified SMARTCARD module. 00104 * @param BlockLength: SMARTCARD block length (8-bit long at most) 00105 * @retval None 00106 */ 00107 void HAL_SMARTCARDEx_BlockLength_Config(SMARTCARD_HandleTypeDef *hsmartcard, uint8_t BlockLength) 00108 { 00109 MODIFY_REG(hsmartcard->Instance->RTOR, USART_RTOR_BLEN, ((uint32_t)BlockLength << SMARTCARD_RTOR_BLEN_LSB_POS)); 00110 } 00111 00112 /** 00113 * @brief Update on the fly the receiver timeout value in RTOR register. 00114 * @param hsmartcard: Pointer to a SMARTCARD_HandleTypeDef structure that contains 00115 * the configuration information for the specified SMARTCARD module. 00116 * @param TimeOutValue: receiver timeout value in number of baud blocks. The timeout 00117 * value must be less or equal to 0x0FFFFFFFF. 00118 * @retval None 00119 */ 00120 void HAL_SMARTCARDEx_TimeOut_Config(SMARTCARD_HandleTypeDef *hsmartcard, uint32_t TimeOutValue) 00121 { 00122 assert_param(IS_SMARTCARD_TIMEOUT_VALUE(hsmartcard->Init.TimeOutValue)); 00123 MODIFY_REG(hsmartcard->Instance->RTOR, USART_RTOR_RTO, TimeOutValue); 00124 } 00125 00126 /** 00127 * @brief Enable the SMARTCARD receiver timeout feature. 00128 * @param hsmartcard: Pointer to a SMARTCARD_HandleTypeDef structure that contains 00129 * the configuration information for the specified SMARTCARD module. 00130 * @retval HAL status 00131 */ 00132 HAL_StatusTypeDef HAL_SMARTCARDEx_EnableReceiverTimeOut(SMARTCARD_HandleTypeDef *hsmartcard) 00133 { 00134 00135 if(hsmartcard->gState == HAL_SMARTCARD_STATE_READY) 00136 { 00137 /* Process Locked */ 00138 __HAL_LOCK(hsmartcard); 00139 00140 hsmartcard->gState = HAL_SMARTCARD_STATE_BUSY; 00141 00142 /* Set the USART RTOEN bit */ 00143 SET_BIT(hsmartcard->Instance->CR2, USART_CR2_RTOEN); 00144 00145 hsmartcard->gState = HAL_SMARTCARD_STATE_READY; 00146 00147 /* Process Unlocked */ 00148 __HAL_UNLOCK(hsmartcard); 00149 00150 return HAL_OK; 00151 } 00152 else 00153 { 00154 return HAL_BUSY; 00155 } 00156 } 00157 00158 /** 00159 * @brief Disable the SMARTCARD receiver timeout feature. 00160 * @param hsmartcard: Pointer to a SMARTCARD_HandleTypeDef structure that contains 00161 * the configuration information for the specified SMARTCARD module. 00162 * @retval HAL status 00163 */ 00164 HAL_StatusTypeDef HAL_SMARTCARDEx_DisableReceiverTimeOut(SMARTCARD_HandleTypeDef *hsmartcard) 00165 { 00166 00167 if(hsmartcard->gState == HAL_SMARTCARD_STATE_READY) 00168 { 00169 /* Process Locked */ 00170 __HAL_LOCK(hsmartcard); 00171 00172 hsmartcard->gState = HAL_SMARTCARD_STATE_BUSY; 00173 00174 /* Clear the USART RTOEN bit */ 00175 CLEAR_BIT(hsmartcard->Instance->CR2, USART_CR2_RTOEN); 00176 00177 hsmartcard->gState = HAL_SMARTCARD_STATE_READY; 00178 00179 /* Process Unlocked */ 00180 __HAL_UNLOCK(hsmartcard); 00181 00182 return HAL_OK; 00183 } 00184 else 00185 { 00186 return HAL_BUSY; 00187 } 00188 } 00189 00190 /** 00191 * @} 00192 */ 00193 00194 /** 00195 * @} 00196 */ 00197 00198 #endif /* HAL_SMARTCARD_MODULE_ENABLED */ 00199 00200 /** 00201 * @} 00202 */ 00203 00204 /** 00205 * @} 00206 */ 00207 00208 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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